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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1046640Generated: October 31, 2026

Ethyl bromopyruvate → HCID 59251254, compound

https://huagongshe.com/reaction/1046640

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromopyruvateHCID 66144—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 178512096HCID 178512096—
SolventEthanolHCID 702—
ProductHCID 59251254HCID 5925125413.3%

Reaction Conditions

Temperature175 °C

Reaction Steps

A mixture of 4-bromo-N-(2-chlorobenzyl)-benzamidine (1.4 g, 4.3 mmol), sodium bicarbonate (0.72 g, 8.6 mmol) and ethyl bromopyruvate (0.98 mL, 7.8 mmol) in EtOH (14 mL) was heated in a microwave unit (Biotage Initiator™) at 175° C. for 12 min. The resulting mixture was decanted and the solids rinsed with EtOAc. The combined filtrates were concentrated and purified by chromatography (silica, EtOAc/Hex, 0:100 to 40:60) to give the title compound (0.24 g, 13%) as a pale brown residue. 1H-NMR (DCM-d2): δ 7.58-7.62 (m, 3H), 7.43-7.49 (m, 3H), 7.34 (m, 1H), 7.28 (m, 1H), 6.96 (d, 1H), 5.30 (s, 2H), 4.32 (q, 2H), 1.35 (t, 3H); MS (ES): 419, 421 [M+H].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569352B2
Source datasetuspto-grants-2013_10
ORD IDord-fe410254412b4bc6ba067b85daff950a
Source noteuspto-grants-2013_10